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A platform for research: civil engineering, architecture and urbanism
Construction method for installing steel longitudinal beams and replacing suspenders of concrete-filled steel tube tied arch bridge
The invention discloses a construction method for installing a steel longitudinal beam and replacing a suspender of a concrete-filled steel tube tied arch bridge, which relates to the technical field of bridge construction and comprises the steps of installing the steel longitudinal beam, unloading cable force of an original suspender, dismantling the original suspender, installing a new suspender, tensioning the suspender and the like. The steel longitudinal beams are installed between the steel cross beams, it is guaranteed that the steel cross beams cannot generate large displacement when an old suspender is dismantled, and beam falling accidents are prevented. A transfer beam, a lower joist and a temporary sling facility do not need to be installed in the construction process, and when the upper end of the suspender is detached, only a small construction platform needs to be erected on an arch, and a jack and other auxiliary measures are adopted; when the lower end of the suspender is detached, a rope or a temporary hanging basket is adopted to prevent the lower anchor head from falling off; according to the method, the construction procedure is simplified, the construction efficiency is improved, meanwhile, the overall stability of the bridge is improved by installing the steel longitudinal beams, and the reinforcing effect is achieved.
本发明公开了一种钢管混凝土系杆拱桥安装钢纵梁更换吊杆施工方法，涉及桥梁建筑技术领域，包括安装钢纵梁、卸载原吊杆索力、拆除原吊杆、安装新吊杆、吊杆张拉等；通过在钢横梁间安装钢纵梁，保证拆除旧吊杆时钢横梁不会发生较大的位移，防止了落梁事故发生。该施工过程不需要安装转换梁、下托梁和临时吊索设施，进行吊杆上端头拆卸时仅需拱上搭设小型施工平台，采用千斤顶等辅助措施；进行吊杆下端头的拆卸时，采用绳索或临时吊篮，防止下锚头掉落；该方法简化了施工工序，提高了施工工效，同时安装钢纵梁提高了桥梁的整体稳定性，起到了加固的效果。
Construction method for installing steel longitudinal beams and replacing suspenders of concrete-filled steel tube tied arch bridge
The invention discloses a construction method for installing a steel longitudinal beam and replacing a suspender of a concrete-filled steel tube tied arch bridge, which relates to the technical field of bridge construction and comprises the steps of installing the steel longitudinal beam, unloading cable force of an original suspender, dismantling the original suspender, installing a new suspender, tensioning the suspender and the like. The steel longitudinal beams are installed between the steel cross beams, it is guaranteed that the steel cross beams cannot generate large displacement when an old suspender is dismantled, and beam falling accidents are prevented. A transfer beam, a lower joist and a temporary sling facility do not need to be installed in the construction process, and when the upper end of the suspender is detached, only a small construction platform needs to be erected on an arch, and a jack and other auxiliary measures are adopted; when the lower end of the suspender is detached, a rope or a temporary hanging basket is adopted to prevent the lower anchor head from falling off; according to the method, the construction procedure is simplified, the construction efficiency is improved, meanwhile, the overall stability of the bridge is improved by installing the steel longitudinal beams, and the reinforcing effect is achieved.
本发明公开了一种钢管混凝土系杆拱桥安装钢纵梁更换吊杆施工方法，涉及桥梁建筑技术领域，包括安装钢纵梁、卸载原吊杆索力、拆除原吊杆、安装新吊杆、吊杆张拉等；通过在钢横梁间安装钢纵梁，保证拆除旧吊杆时钢横梁不会发生较大的位移，防止了落梁事故发生。该施工过程不需要安装转换梁、下托梁和临时吊索设施，进行吊杆上端头拆卸时仅需拱上搭设小型施工平台，采用千斤顶等辅助措施；进行吊杆下端头的拆卸时，采用绳索或临时吊篮，防止下锚头掉落；该方法简化了施工工序，提高了施工工效，同时安装钢纵梁提高了桥梁的整体稳定性，起到了加固的效果。
Construction method for installing steel longitudinal beams and replacing suspenders of concrete-filled steel tube tied arch bridge
一种钢管混凝土系杆拱桥安装钢纵梁更换吊杆施工方法
MA GUANGHUI (author) / WANG LEI (author) / LI WAN (author) / LI YAO (author) / ZHU XUEJIAN (author) / LIU SHAOHUA (author)
2023-02-03
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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